JEE Main & Advanced Chemistry The s-Block Elements Question Bank Critical Thinking

  • question_answer Which of the following element does not belong to the family of elements indicated [Orissa JEE 1997]

    A) Rubidium (Rb, Z = 37) : Alkali metals

    B) Barium (Ba, Z = 56) : Alkaline earth metals

    C) Iridium (I, Z = 77) : Nobel gases

    D) Argon (Ar, Z = 18) : Nobel gases

    Correct Answer: C

    Solution :

    Iridium \[[I,Z=77]\] is not belong to noble gas.

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